mirror of https://github.com/sipwise/jitsi.git
Damian Minkov
15 years ago
parent
de8a65cc55
commit
b809c0f68b
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/*
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* Jitsi, the OpenSource Java VoIP and Instant Messaging client.
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*
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* Distributable under LGPL license.
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* See terms of license at gnu.org.
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*/
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package net.java.sip.communicator.impl.protocol.jabber;
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import java.util.*;
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import net.java.sip.communicator.impl.neomedia.codec.*;
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import net.java.sip.communicator.service.neomedia.*;
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import net.java.sip.communicator.service.neomedia.format.*;
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import net.java.sip.communicator.service.protocol.*;
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import net.java.sip.communicator.util.*;
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/**
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* Class responsible for sending a DTMF Tone using using rfc4733 or Inband.
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*
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* @author Damian Minkov
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*/
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public class OperationSetDTMFJabberImpl
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implements OperationSetDTMF
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{
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/**
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* Our class logger.
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*/
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private static final Logger logger
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= Logger.getLogger(OperationSetDTMFJabberImpl.class);
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/**
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* The DTMF method used to send tones.
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*/
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private DTMFMethod dtmfMethod;
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/**
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* Constructor.
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*
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* @param pps the Jabber Protocol provider service
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*/
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public OperationSetDTMFJabberImpl(ProtocolProviderServiceJabberImpl pps)
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{
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this.dtmfMethod = this.getDTMFMethod(pps);
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}
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/**
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* Sends the <tt>DTMFTone</tt> <tt>tone</tt> to <tt>callPeer</tt>.
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*
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* @param callPeer the call peer to send <tt>tone</tt> to.
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* @param tone the DTMF tone to send to <tt>callPeer</tt>.
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*
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* @throws OperationFailedException with code OPERATION_NOT_SUPPORTED if
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* DTMF tones are not supported for <tt>callPeer</tt>.
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*
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* @throws NullPointerException if one of the arguments is null.
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*
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* @throws IllegalArgumentException in case the call peer does not
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* belong to the underlying implementation.
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*/
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public synchronized void startSendingDTMF(CallPeer callPeer, DTMFTone tone)
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throws OperationFailedException
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{
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if (callPeer == null || tone == null)
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{
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throw new NullPointerException("Argument is null");
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}
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if (! (callPeer instanceof CallPeerJabberImpl))
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{
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throw new IllegalArgumentException();
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}
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CallPeerJabberImpl cp = (CallPeerJabberImpl)callPeer;
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DTMFMethod cpDTMFMethod = dtmfMethod;
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// If "auto" DTMF mode selected, automatically selects RTP DTMF is
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// telephon-event is available. Otherwise selects INBAND DMTF.
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if(this.dtmfMethod == DTMFMethod.AUTO_DTMF)
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{
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if(isRFC4733Active(cp))
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{
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cpDTMFMethod = DTMFMethod.RTP_DTMF;
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}
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else
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{
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cpDTMFMethod = DTMFMethod.INBAND_DTMF;
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}
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}
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// If the account is configured to use RTP DTMF method and the call
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// does not manage telephone events. Then, we log it for future
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// debugging.
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if(this.dtmfMethod == DTMFMethod.RTP_DTMF && !isRFC4733Active(cp))
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{
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logger.debug("RTP DTMF used without telephone-event capacities");
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}
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((AudioMediaStream)cp.getMediaHandler().getStream(MediaType.AUDIO))
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.startSendingDTMF(tone, cpDTMFMethod);
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}
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/**
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* Stops sending DTMF.
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*
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* @param callPeer the call peer that we'd like to stop sending DTMF to.
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*/
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public synchronized void stopSendingDTMF(CallPeer callPeer)
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{
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if (callPeer == null)
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{
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throw new NullPointerException("Argument is null");
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}
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if (! (callPeer instanceof CallPeerJabberImpl))
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{
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throw new IllegalArgumentException();
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}
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CallPeerJabberImpl cp = (CallPeerJabberImpl) callPeer;
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DTMFMethod cpDTMFMethod = dtmfMethod;
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// If "auto" DTMF mode selected, automatically selects RTP DTMF is
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// telephon-event is available. Otherwise selects INBAND DMTF.
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if(this.dtmfMethod == DTMFMethod.AUTO_DTMF)
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{
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if(isRFC4733Active(cp))
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{
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cpDTMFMethod = DTMFMethod.RTP_DTMF;
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}
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else
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{
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cpDTMFMethod = DTMFMethod.INBAND_DTMF;
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}
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}
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// If the account is configured to use RTP DTMF method and the call
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// does not manage telephone events. Then, we log it for future
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// debugging.
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if(this.dtmfMethod == DTMFMethod.RTP_DTMF && !isRFC4733Active(cp))
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{
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logger.debug("RTP DTMF used without telephone-event capacities");
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}
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((AudioMediaStream)cp.getMediaHandler().getStream(MediaType.AUDIO))
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.stopSendingDTMF(cpDTMFMethod);
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}
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/**
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* Checks whether rfc4733 is negotiated for this call.
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* @param peer the call peer.
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* @return whether we can use rfc4733 in this call.
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*/
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private boolean isRFC4733Active(CallPeerJabberImpl peer)
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{
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Iterator<MediaFormat> iter =
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peer.getMediaHandler().getStream(MediaType.AUDIO)
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.getDynamicRTPPayloadTypes().values().iterator();
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while (iter.hasNext())
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{
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MediaFormat mediaFormat = iter.next();
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if(mediaFormat.getEncoding().equals(Constants.TELEPHONE_EVENT))
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return true;
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}
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return false;
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}
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/**
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* Returns the corresponding DTMF method used for this account.
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*
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* @param pps the Jabber Protocol provider service
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*
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* @return the DTMFEnum corresponding to the DTMF method set for this
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* account.
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*/
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private DTMFMethod getDTMFMethod(ProtocolProviderServiceJabberImpl pps)
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{
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AccountID accountID = pps.getAccountID();
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String dtmfString = accountID.getAccountPropertyString("DTMF_METHOD");
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// Verifies that the DTMF_METHOD property string is correctly set.
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// If not, sets this account to the "auto" DTMF method and corrects the
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// property string.
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if(dtmfString == null
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|| (!dtmfString.equals("AUTO_DTMF")
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&& !dtmfString.equals("RTP_DTMF")
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&& !dtmfString.equals("INBAND_DTMF")))
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{
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dtmfString = "AUTO_DTMF";
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accountID.putAccountProperty("DTMF_METHOD", dtmfString);
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}
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if(dtmfString.equals("AUTO_DTMF"))
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{
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return DTMFMethod.AUTO_DTMF;
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}
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else if(dtmfString.equals("RTP_DTMF"))
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{
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return DTMFMethod.RTP_DTMF;
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}
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else // if(dtmfString.equals(INBAND_DTMF"))
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{
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return DTMFMethod.INBAND_DTMF;
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}
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}
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}
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